SN74V273-6GGM

FIFOs Memory Overview

The SN74V273-6GGM is a high-speed, deep CMOS first-in, first-out (FIFO) memory device operating at 3.3 V. It provides a storage capacity of 16384 words by 18 bits or 32768 words by 9 bits. The component supports independent read and write clocks with frequencies up to 166 MHz and features a 6 ns read/write cycle time. It includes user-selectable bus sizing for matching unequal data widths and offers configurable timing modes.

FIFOs Memory Feature Summary

• Supports flexible bus-matching configurations allowing selectable input and output port widths of either 9-bit or 18-bit.
• Features programmable almost-empty and almost-full flags that can be configured via serial or parallel methods with selectable default offsets.
• Provides two operational timing modes: standard mode and first-word fall-through (FWFT) mode for optimized data access latency.

FIFOs Memory Applications

• Buffering large amounts of data in telecommunications systems
• Matching buses of unequal sizes in network applications
• Video processing data buffering
• Data communications interfaces

FIFOs Memory Procurement Notes

Verify the specific suffix '6GGM' against the manufacturer's official documentation to confirm package type and pinout compatibility. Ensure the design supports the required 3.3 V supply voltage and check signal integrity for high-frequency clock inputs up to 166 MHz. Confirm that the GGM package dimensions fit the target PCB layout constraints.

FIFOs Memory Selection Notes

Select this component when deep memory depth combined with high-speed operation is required. It is suitable for applications needing independent read and write clocks and flexible data width conversion between 9-bit and 18-bit buses. Consider the FWFT mode if low latency for the first word is critical for the system timing requirements.

FIFOs Memory Part Context

This device belongs to the SN74V series of high-performance submicron CMOS FIFO memories from Texas Instruments. The family includes variants with different depths such as the SN74V263, SN74V283, and SN74V293. These components are designed for glueless interfacing with high-speed processors like DSPs.

FIFOs Memory Replacement Considerations

SN74V263-6GGM

FIFOs Memory FAQ

How is the bus width configured?

The input and output bus widths are selected during the master reset cycle using the IW (Input Width) and OW (Output Width) pins to configure the ports for either 9-bit or 18-bit operation.

What is the function of the retransmit feature?

The retransmit feature allows previously read data to be accessed again by resetting the read pointer to the first location of the memory array without disturbing the write pointer.